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Diffstat (limited to 'man2/gettimeofday.2')
| -rw-r--r-- | man2/gettimeofday.2 | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/man2/gettimeofday.2 b/man2/gettimeofday.2 index d7f1dbe2b9..9d134fa49d 100644 --- a/man2/gettimeofday.2 +++ b/man2/gettimeofday.2 @@ -169,7 +169,20 @@ The calling process has insufficient privilege to call under Linux the .B CAP_SYS_TIME capability is required. +.SH VERSIONS +.SS C library/kernel differences +On some architectures, an implementation of +.BR gettimeofday () +is provided in the +.BR vdso (7). .SH STANDARDS +.TP +.BR gettimeofday () +POSIX.1-2008 (obsolete). +.TP +.BR settimeofday () +None. +.SH HISTORY SVr4, 4.3BSD. POSIX.1-2001 describes .BR gettimeofday () @@ -180,31 +193,12 @@ POSIX.1-2008 marks as obsolete, recommending the use of .BR clock_gettime (2) instead. -.SH NOTES -The time returned by -.BR gettimeofday () -.I is -affected by discontinuous jumps in the system time -(e.g., if the system administrator manually changes the system time). -If you need a monotonically increasing clock, see -.BR clock_gettime (2). -.PP -Macros for operating on -.I timeval -structures are described in -.BR timeradd (3). .PP Traditionally, the fields of .I struct timeval were of type .IR long . .\" -.SS C library/kernel differences -On some architectures, an implementation of -.BR gettimeofday () -is provided in the -.BR vdso (7). -.\" .SS The tz_dsttime field On a non-Linux kernel, with glibc, the .I tz_dsttime @@ -264,6 +258,19 @@ this period is determined by unpredictable political decisions. So this method of representing timezones has been abandoned. +.SH NOTES +The time returned by +.BR gettimeofday () +.I is +affected by discontinuous jumps in the system time +(e.g., if the system administrator manually changes the system time). +If you need a monotonically increasing clock, see +.BR clock_gettime (2). +.PP +Macros for operating on +.I timeval +structures are described in +.BR timeradd (3). .SH SEE ALSO .BR date (1), .BR adjtimex (2), |